Hormuz Deal at One Signature: Oil Risk Premium Unwinds, But Refined-Product Squeeze Stays

Oil tanker traffic through the Strait of Hormuz has collapsed from roughly 130 daily crossings before the U.S.-Iran war began in late February to as few as nine vessels on a single day in early August^[1]. Now, after five months of conflict that saw the strait effectively shut down, an interim agreement brokered through Oman may be on the verge of reopening it. Iran’s Supreme National Security Council is reportedly awaiting final approval of a framework deal with the U.S. and Oman, with expectations that approval could come shortly^[2].

The market has already begun pricing in a breakthrough. Brent crude fell roughly 5 percent on August 3 after President Donald Trump announced he had called off planned strikes on Iran, sinking below $84 per barrel^[3]. By August 6, Brent was holding near $80 and WTI above $75 as cautious optimism over the Iran-Oman talks kept pressure on the geopolitical risk premium^[3]. Brent settled at $83.55 on August 7, up 1.3 percent, as uncertainty about whether Iran’s security council would actually sign off reintroduced some supply-scare pricing^[3].

Equity Markets Rally on Hormuz Hopes

The S&P 500 surged 1.8 percent on August 4 to top 7,700 for the first time, surpassing its previous record of 7,620.90 set on June 2^[1]. The Dow Jones Industrial Average set a new record for a second straight day, climbing 1.7 percent to 54,085.88^[1]. The rally extended to Asia, with Tokyo’s Nikkei 225 finishing up 3.7 percent and Seoul’s Kospi rising 3.8 percent^[1].

Energy stocks moved in the opposite direction. Several major oil producers were among the S&P 500’s biggest decliners on August 4 as the prospect of a Hormuz deal deflated the supply-risk premium that had been supporting their valuations^[4]. ExxonMobil closed at $152.94 on August 7, down 1.2 percent; Chevron ended at $186.57, down 1.4 percent^[5]. ConocoPhillips, however, ticked up 0.7 percent to $117.61 before slipping to $115.81 in after-hours trading^[5].

The pattern is what one would expect from a war premium deflating: equities broadened as oil fell, and the energy sector carried the other side of the trade. Treasury Secretary Scott Bessent told CNBC that an agreement on the strait could be reached “today or tomorrow”^[6], and Secretary of State Marco Rubio separately said progress had been made and he hoped a deal would happen “very shortly”^[1].

The Deal Framework: What’s Actually on the Table

The proposed agreement is a 60-day interim arrangement brokered through Oman, with Pakistan involved indirectly and the U.S. participating through backchannels^[6][7]. Under the framework, ships would transit through both Iranian and Omani waters without paying transit fees, and mines would be cleared from the strait within 30 days^[7].

A critical sticking point is control. Reuters reported that the proposed deal would give Tehran more control over vessels passing through the waterway^[6] — a major concession that runs against the long-standing U.S. position that it will not accept Iranian control of the strait. Iran’s Fars news outlet characterized Trump’s demands as a “wish list”^[8], and regional sources have pushed back against the suggestion that a deal is imminent^[6].

The gap between Trump’s public assertions and the diplomatic reality remains wide. Trump declared that the United States has “complete control” of the strait even as Iran denied that direct talks were taking place^[9]. U.S. Central Command insisted the “southern route through the Strait of Hormuz remains free and open” — though this route passes through Omani, not Iranian, territorial waters^[6].

The Refined-Product Squeeze That Won’t Disappear With a Deal

Even if the Hormuz framework is approved, the energy market faces a deeper structural problem: refined product shortages. The initial focus of the U.S.-Iran conflict was on crude oil availability, but that focus has shifted to refined products — diesel and gasoline — over the last two months^[10]. Crack spreads, the margin between crude and refined product prices, have reached record levels^[10].

Two simultaneous conflicts are driving the refined-product crisis. Ukraine’s strikes on Russia’s refining industry have removed significant diesel capacity from the global market, while Iranian attacks on Middle Eastern production and refining facilities have further constrained supply^[10]. LNG exports through the Strait of Hormuz have declined by 95 percent^[8]. The destruction of refining infrastructure is not something a ceasefire agreement can quickly reverse; restarting damaged facilities takes months, and the growing number of fronts and warring parties makes rebuilding risky^[10].

The commodity market is already signaling this divergence. WTI and Brent futures slid into backwardation — front-month contracts dropping 4 to 5 percent on August 3 — even as diesel supply remained tight^[10]. The market is pricing crude oversupply from rising Russian exports while simultaneously pricing a diesel shortage that shows few signs of relief^[10]. Brent recovered faster than WTI after a Houthi attack claim near Yanbu revived the Red Sea oil premium, confirming that the market still prices direct risk to Middle East export cargoes^[3].

Polysilicon Tariffs: A Second Supply-Chain Shock

While the Hormuz negotiations dominate headlines, the Trump administration signed a Section 232 proclamation on August 7 imposing a 15 percent tariff on imported polysilicon along with minimum import price floors for polysilicon, solar ingots, wafers, cells, and modules^[11][12]. The tariffs and price floors take effect December 4, 2026^[11].

Minimum import prices are set at $21 per kilogram for polysilicon, $100 per kilogram for ingots and wafers, $0.22 per watt for solar cells, and $0.38 per watt for solar modules^[11]. The White House noted that “the United States is virtually entirely dependent on imports of solar ingots, wafers, and cells”^[11].

According to Roth Capital Partners, the tariffs are expected to raise U.S. solar module prices by roughly $0.10 per watt on average, requiring Power Purchase Agreement rates to rise by $4 to $5 per MWh to offset the additional capital costs^[11]. For directly imported finished modules, prices are projected to jump from pre-tariff levels of $0.24/W up to $0.38/W — a 58 percent increase^[11].

The measure has drawn support from domestic manufacturers. First Solar’s CEO called it “one of the most strategically significant trade measures in decades”^[11]. Hanwha Qcells, which is building one of the largest U.S. solar manufacturing facilities in Georgia, said the decision “helps support the billions of dollars invested and the thousands of jobs created at factories around the country”^[11].

U.S. Munitions Shortage: The Constraint on Escalation

A quieter indicator beneath the diplomatic push: the U.S. military has depleted most of its stockpile of Army Tactical Missile Systems and Precision Strike Missiles, and has exhausted nearly 80 percent of its interceptors for its THAAD missile defense system during the Iran war^[6]. The White House has insisted the U.S. has “far more munitions than anyone in the world,” but the supply data suggests a material constraint on the ability to sustain or escalate a bombing campaign^[6].

This matters for markets because it narrows the range of plausible scenarios. If the Hormuz deal falls through, the U.S. may have less capacity to execute the “decapitation strikes” Trump has threatened^[7]. The constraint pulls the base case toward a protracted negotiation rather than a sharp military escalation — which is consistent with the oil market’s move into backwardation rather than a supply-shock spike.

What to Watch Next

1. Iranian Supreme National Security Council decision. Axios reported Friday that Iran is awaiting council approval and expects it shortly^[2]. A rejection or delay would reintroduce the supply-risk premium that the August 3–4 oil selloff removed. Watch Brent’s response: a break above $86 would signal the market is re-pricing escalation risk.

2. Refined product spreads. Even a successful Hormuz deal does not restore damaged refining capacity in Russia or the Middle East. Record crack spreads^[10] mean diesel and gasoline prices could remain elevated even as crude falls. This is the gap between what a ceasefire fixes and what it does not.

3. Polysilicon tariff implementation timeline. The December 4 effective date^[11] gives the market a 120-day window. Watch for USTR arrangements with specific trading partners that could alter the tariffs’ applicability, and for onshoring announcements triggered by the construction deadline of January 20, 2029^[11].

4. Houthi Red Sea activity. A Houthi attack claim near Yanbu revived the Red Sea oil premium within hours of the August 3 crude selloff^[3]. The Red Sea route remains a separate chokepoint from Hormuz, and Houthi denial of any plan to levy fees on Red Sea shipping introduces a different kind of uncertainty^[8].

5. 25-state tariff lawsuit. Twenty-five U.S. states sued the Trump administration on August 3 over a wave of tariffs against dozens of countries^[13]. If courts issue injunctions, the trade-policy landscape that the polysilicon tariffs and Section 301 measures on 60 economies are built on could shift rapidly.

This article is research commentary for educational purposes and does not constitute investment advice. All factual claims are sourced to the publications cited inline.